Finite automaton

We present here a construction for the derived term automaton (aka partial derivative, or Antimirov, automaton) of a rational (or regular) expression based on a sole induction on the depth of the expression and without making reference to an operation of derivation of the expression.

21p vimulcahy 18-09-2023 6 2   Download

Lecture Compiler construction: Lesson 7 - Sohail Aslam. The main topics covered in this chapter include: table encoding of FA, transition table, simulating FA, finite automata, nondeterministic finite automaton (NFA), epsilon moves, deterministic finite automata (DFA), NFAs and DFAs recognize the same set of languages,...

40p youzhangjing_1909 28-04-2022 14 1   Download

Lecture Compiler construction: Lesson 25 - Sohail Aslam. The main topics covered in this chapter include: sets of LR(1) items, the closure procedure, the goto procedure, finite automaton of items, nondeterministic finite automaton (NFA), the DFA can be constructed from this NFA using the subset construction, similar to one we used for lexical analysis,...

25p youzhangjing_1909 28-04-2022 16 1   Download

Lecture Compiler construction: Lesson 26 - Sohail Aslam. The main topics covered in this chapter include: finite automaton of items, construction of collection of canonical sets of LR(1) items, sets of LR(1) items and augmented grammar, NFA of LR(0) items, LR table construction,...

35p youzhangjing_1909 28-04-2022 8 1   Download

Lecture Theory of Automata: Lesson 4. The main topics covered in this chapter include: regular expression of EVEN-EVEN language, difference between a* + b* and (a+b)*, equivalent regular expressions; sum, product and closure of regular expressions; regular languages, finite languages are regular, introduction to finite automaton, definition of FA, transition table, transition diagram;...

21p wangziyi_1307 26-04-2022 21 2   Download

Lecture Theory of Automata: Lesson 10. The main topics covered in this chapter include: definition of GTG, examples of GTG accepting the languages of strings: containing aa or bb, beginning with and ending in same letters, beginning with and ending in different letters, containing aaa or bbb,...

18p wangziyi_1307 26-04-2022 14 2   Download

Lecture Theory of Automata: Lesson 20. The main topics covered in this chapter include: recap theorem and example, finite automaton with output, moore machine and examples, Martin’s method, the memory required to recognize,...

18p wangziyi_1307 26-04-2022 12 3   Download

Lecture Theory of Automata: Lesson 15. The main topics covered in this chapter include: examples of Kleene’s theorem part III (method 3), NFA, examples and avoiding loop using NFA, example and converting FA to NFA, examples and applying an NFA on an example of maze,...

21p wangziyi_1307 26-04-2022 13 2   Download

Bài giảng Lý thuyết tính toán: Bài 3 - Phạm Xuân Cường cung cấp cho học viên các kiến thức về ôtômat hữu hạn không đơn định; khái niệm; sự tương đương giữa NFA và DFA; định nghĩa hình thức; toán tử chính quy với NFA;... Mời các bạn cùng tham khảo chi tiết nội dung bài giảng!

30p bachkhinhdaluu 10-12-2021 13 1   Download

Lecture Formal methods in software engineering: Finite automata. In this chapter, the following content will be discussed: Yet another method for defining languages, fas and their languages, even-even revisited, how does a finite automaton work? Transition table, FA and their languages.

38p larachdumlanat126 31-12-2020 13 1   Download

This chapter includes contents: Regular expression of EVEN-EVEN language, Difference between a* + b* and (a+b)*, Equivalent regular expressions; sum, product and closure of regular expressions; regular languages, finite languages are regular, introduction to finite automaton, definition of FA, transition table, transition diagram.

13p thuongdanguyetan03 18-04-2020 14 1   Download

After studying this chapter you will be able to understand: Examples of Kleene’s theorem part III (method 3), NFA, examples, avoiding loop using NFA, example, converting FA to NFA, examples, applying an NFA on an example of maze.

15p thuongdanguyetan03 18-04-2020 11 2   Download

Lecture Theory of automata - Lecture 20 includes the following content: recap theorem, example, finite automaton with output, moore machine, examples.

23p thuongdanguyetan03 18-04-2020 15 2   Download

A nondeterministic finite automaton was designed to monitor enzymatic regulation and detoxification of excess ammonia in the urea cycle and its disorders. The designed machine is used for the diagnosis of deficiency and for regulating the expression of any of the enzymes involved with acceptance and rejection states in the urea cycle.

5p vikimsa 22-02-2019 19 0   Download

In this paper, we use the finite state automata to count the number of restricted permutations and the number of restricted variations. For each type of restricted permutations, we construct a finite state automaton able to recognize and enumerate them. We, also, discuss how it encompasses the other known methods for enumerating permutations with restricted position, and in one case, we establish connections with some other combinatorial structures, such as subsets and compositions.

16p vinguyentuongdanh 19-12-2018 12 0   Download

Aspects of abstract finite-state morphology are introduced and demonstrated. The use of two-way finite automata for Arabic noun stem and verb root inflection leads to abstractions based on finite-state transition network topology as well as the form and content of network arcs. Nonconcatenative morphology is distinguished from concatenative morphology by its use of movement on the output tape rather than the input tape. The idea of specific automata for classes of inflection inheriting some or all of the nodes, arc form and arc content of the abstract automaton is also introduced. ...

8p buncha_1 08-05-2013 42 0   Download

In this paper, we present a morphological processor for Modern Greek. From the linguistic point of view, we tr5, to elucidate the complexity of the inflectional system using a lexical model which follows the mecent work by Lieber, 1980, Selkirk 1982, Kiparsky 1982, and others. The implementation is based on the concept of "validation grammars" (Coumtin 1977). The morphological processing is controlled by a finite automaton and it combines a. a dictionary containing the stems for a representative fragment of Modern Greek and all the inflectional affixes with b.

6p buncha_1 08-05-2013 37 1   Download

In the last few years, so called finite.state morphology, in general, and two-level morphology in particular, have become widely accepted as paradigms for the computational treatment of morphology. Finite-state morphology appeals to the notion of a finite-state transducer, which is simply a classical finite-state automaton whose transitions are labeled with pairs, rather than with single symbols. The automaton operates on a pair of tapes and advances over a given transition if the current symbols on the tapes match the pair on the transition. ...

9p buncha_1 08-05-2013 38 2   Download

We define a set of deterministic bottom-up left to right parsers which analyze a subset of Tree Adjoining Languages. The LR parsing strategy for Context Free Grammars is extended to Tree Adjoining Grammars (TAGs). We use a machine, called Bottom-up Embedtied Push Down Automaton (BEPDA), that recognizes in a bottom-up fashion the set of Tree Adjoining Languages (and exactly this se0. Each parser consists of a finite state control that drives the moves of a Bottom-up Embedded Pushdown Automaton. ...

8p bungio_1 03-05-2013 36 1   Download

Unification-based grammar formalisms use structures containing sets of features to describe linguistic objects. Although computational algorithms for unification of feature structures have been worked out in experimental research, these algcwithms become quite complicated, and a more precise description of feature structures is desirable. We have developed a model in which descriptions of feature structures can be regarded as logical formulas, and interpreted by sets of directed graphs which satisfy them.

10p bungio_1 03-05-2013 41 3   Download